Finding the Fourth Proportional to 1,208,448,352.80, 1,813,419,025.20 and 481,361,248.80
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Solution
The fourth proportional to 1,208,448,352.80, 1,813,419,025.20 and 481,361,248.80 is: 722,339,224.96
Step by Step Solution
- Step 1: Write the proportion equation
1,208,448,352.80 : 1,813,419,025.20 = 481,361,248.80 : x - Step 2: Convert to fraction form
1,208,448,352.80/1,813,419,025.20 = 481,361,248.80/x - Step 3: Cross multiply
1,208,448,352.80x = 1,813,419,025.20 × 481,361,248.80 - Step 4: Simplify right side
1,208,448,352.80x = 872,909,646,567,950,720 - Step 5: Solve for x
x = 872,909,646,567,950,720/1,208,448,352.80 - Step 6: Final answer
x = 722,339,224.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.